BIOSTAR TA990FXE Ver. 5.x BIOS 99FAD807 Socket : AM3+ Supported Socket AM3+ processors AMD FX/ Phenom II/ Athlon II processor Supported AMD Mutil Core(x8,x6) AMD 140W processor support AMD 990FX Chipset Support ATI crossfireX & nVidia SLI multi-GPU technology 4 DIMM supported DDR3-2200(OC)/1866/1600/1333/1066 Supported SATA 6Gb/s 2X speed than current SATA 3G Supported USB 3.0 BIOSTAR G.P.U ( Green Power Utility ) for green power saving your desktop UEFI BIOS natively supports HDD larger than 2TB